@article{aaa,
  title={This is one paper},
  author={Alice},
  journal={Journal},
  number={2},
  pages={10-11},
  year={1900}
}
@article{bbb,
  title={This is the second paper},
  author={Alice and Bob},
  journal={Journal},
  number={2},
  pages={10-11},
  year={1900}
}

@article{ccc,
  title={This is the third paper},
  author={Alice and Bob and Eve},
  journal={Journal},
  number={2},
  pages={10-11},
  year={1900}
}

@ELECTRONIC{markdown2pdf,
  author = "jdhao",
	title = "Converting Markdown to Beautiful PDF with Pandoc",
	etype = "EB",
	ehowpublished = "OL",
	url = "https://jdhao.github.io/2019/05/30/markdown2pdf_pandoc/"
}

@ELECTRONIC{markdownforpaper,
  author = "王树义",
	title = "如何用Markdown写论文？",
	etype = "EB",
	ehowpublished = "OL",
	url = "https://www.jianshu.com/p/b0ac7ae98100"
}